JSFiddle - React, Tailwind, and code Playground

HTML

<form id="form">
    <input type="text" disabled="disabled" value="1" />
    <input type="text" value="2" />
    <input type="text" disabled="disabled" value="3" />
    <input type="text" value="4" />
    <button type="button" id="process">Process</button>
</form>

CSS

input, button {
    display: block;
}

JavaScript

function processInputs(form) {
    var fields = $(form + " :input").not("button");
    fields.each(function (index, element) {
        var isDisabled = $(element).is(':disabled');
        if (isDisabled) {
            $(element).prop('disabled', false);
        } else {
            // Handle input is not disabled
        }
    });
}

$("#process").click(function () {
    processInputs($(this).closest('form').attr('id'));
});